Signal Loss Protection Function; Conditions Which Activate The; Signal Loss Protection Mode; Exiting Rth Mode - Hubsan X4 PRO Instruction Manual

9 SIGNAL LOSS PROTECTION FUNCTION

If the X4 Pro loses transmitter signal, the flight control system will take control of the model and
either land it or return it to the 'home' position and land automatically. This helps prevent
operators from losing or crashing their X4 Pro.
DEPARTURE POINT: When the X4 Pro enters the safe flight state (no GPS) from semi-safe
flight states, the X4 Pro will record that position as the 'home' point.
9.1 CONDITIONS WHICH ACTIVATE THE SIGNAL LOSS PROTECTION
MODE.
(1) Transmitter power is off.
(2) The flight distance is beyond the effective distance of the transmitter's signal transmission.
(3) There are obstacles between the X4 Pro and the transmitter.
(4) The transmitter's signal was interrupted by some other strong electronic interference.

9.2 EXITING RTH MODE

Pull down the RTH function switch, the X4 Pro will exit the RTH Mode.
To ensure that the X4 Pro can return safely to its home point when signal is lost, fly
the X4 Pro in the safe flight state.
If the quantity of GPS satellites drops below six for more than 20 seconds while the
X4 Pro is returning to home, the X4 Pro will descend automatically.
The X4 Pro will not avoid obstacles automatically while in RTH mode.
SIGNAL LOSS PROTECTION FUNCTION
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